Set the node order in list same as order in DAG

orderListAsinDAG.py

def orderSelectionToList():
    """ Set the node order in list same as order in DAG 
         Returns:
            selNodes(List): sorted node order in list as in DAG
    """
    selNodes = nuke.selectedNodes()
    lastNode = nuke.selectedNode()  
    if lastNode.dependencies()[0] in selNodes:
        return list(reversed(selNodes))
    else:
        return selNodes